bluntly honest
When someone says something to another person that sounds like an insult but is simply just the cold truth given by someone that doesn't usually understand insults.
John: *chewing food with mouth open like an annoying little prick*
Sam: *has a blank face on while watching John eat* John, your eating habits are disgusting .
John: Sam that bluntly honest of you to say.
Sam: *has a blank face on while watching John eat* John, your eating habits are disgusting .
John: Sam that bluntly honest of you to say.